rb_dlptr2cptr    477 ext/dl/ptr.c     ptr1 = rb_dlptr2cptr(self);
rb_dlptr2cptr    478 ext/dl/ptr.c     ptr2 = rb_dlptr2cptr(other);
rb_dlptr2cptr    487 ext/dl/ptr.c     ptr1 = rb_dlptr2cptr(self);
rb_dlptr2cptr    488 ext/dl/ptr.c     ptr2 = rb_dlptr2cptr(other);
rb_dlptr2cptr    498 ext/dl/ptr.c     ptr = rb_dlptr2cptr(self);
rb_dlptr2cptr    510 ext/dl/ptr.c     ptr = rb_dlptr2cptr(self);